package com.sky.service.impl;

import com.alibaba.druid.util.Utils;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 对密码进行bcrpt加密，然后再进行比对
        String md5pwd = Utils.md5(password);

        if(!md5pwd.equals(employee.getPassword())){
            //密码错误province_name
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }
        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
//        对象属性拷贝，不用频繁的使用set方法设置属性值
        BeanUtils.copyProperties(employeeDTO,employee); // src , dest
//        设置账号状态 1-正常 0-锁定
        employee.setStatus(StatusConstant.ENABLE);
//        password 默认密码 123456 进行bcrypt加密后存储到数据库
        employee.setPassword(Utils.md5(PasswordConstant.DEFAULT_PASSWORD));
//        employee.setPassword(passwordEncoder.encode(PasswordConstant.DEFAULT_PASSWORD));
//        设置当前记录的创建时间和更新时间
//        employee.setCreateTime(LocalDateTime.now());
//        修改时间
//        employee.setUpdateTime(LocalDateTime.now());


//        设置当前创建人id，和修改人id 先写死，后期改
//        通过拦截器后，threadLocal 存储空间中就有了创建的用户id
//        获取创建的用户id
        Long id = BaseContext.getCurrentId();
//        employee.setCreateUser(id);
//        employee.setUpdateUser(id);
        employeeMapper.insert(employee);
    }

    /**
     * 员工分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
//            开启分页查询
//        select * from employee limit 0,10
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        long total = page.getTotal();
        List<Employee> result = page.getResult();

        return new PageResult(total,result);
    }

    /**
     * 启用禁用员工账号1
     * @param employee
     */
    @Override
    public void update(Employee employee) {
        employeeMapper.update(employee);
    }

    /**
     * 根据id查询员工信息
     * @param id
     */
    @Override
    public Employee getById(long id) {
        Employee employee = employeeMapper.getById(id);
        return employee;
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateUser(BaseContext.getCurrentId());
//        employee.setUpdateTime(LocalDateTime.now());
        employeeMapper.update(employee);


    }
}